A quart (that is, the liquid quart) is a unit of volume measure equal to ¼ gallon, 4 cups, 2 pints, or 32 fluid ounces. A quart is approximately equal to 946 mL, or more roughly to 960 mL or 1 L.

The dry quart is somewhat larger, at about 1.1 L. It is not generally used in cooking.

The now unused British quart is also somewhat larger, containing 40 ounces of a slightly different size. The British quart is about 3% larger than the dry quart and 20% larger than a U.S. liquid quart.